1College of Life Sciences，Nanjing Agricultural University，Nanjing 210095，Jiangsu，China；2College of Resources and Environmental Sciences，Nanjing Agricultural University，Nanjing 210095，Jiangsu，China
Abstract：This paper conducted Cd，Pb，Cr，Zn，Cu，Hg，As，etc. 7 heavy metal content pollution risk assessment of 133 soil samples collected from 41 experimental sites and 59 sampling points in bulk open-air vegetable production areas of China．The results showed that the soil average value of Cd content from all sample sites was 0.2 mg · kg-1，among them soil sample Cd contents of 14 sampling points was higher than the risk screening value，accounting for 23.7% of the total sampling points．The sampling points with serious Cd pollution exceeding standard were mainly distributed in central China Changsha，southern China Nanning and southwestern China Pan Zhihua，etc．The highest value of soil Cd content exceed standard was 1.3 mg · kg-1． Except one sampling site in Kunming Yunnan its soil Cu content and one sampling site in Haidian Beijing its soil Hg content were higher than risk screening value，the soil Cu and Hg and Pb，Cr，Zn，As contents in the rest sampling sites were all within safe limits．Cd pollution in bulk open-air vegetable production areas in China deserves special attention．
仲可成，王倩瑜，贾琪源，李建民，罗春丽，徐可馨，黄婷，李舒清，邹建文，陈亚华. 我国大宗露天蔬菜产地土壤7种重金属元素污染分析[J]. 中国蔬菜, 2021, 1(9): 33-40.
ZHONG Kecheng，WANG Qianyu，JIA Qiyuan，LI Jianmin，LUO Chunli，XU Kexin，HUANG Ting，LI Shuqing，ZOU Jianwen，CHEN Yahua. Analysis of Seven Heavy Metal Elements Pollution in Soil of Bulk Open-air Vegetable Production Areas in China. China Vegetables, 2021, 1(9): 33-40.
